convert shine_enwindow to integers
convert mdct's cs and ca to integers
fix some const correctness
move some tables to tables.c
remove samplerates and bitrates tables in layer3.h
optimize putbits functions, and remove some unused functions
replace some copy (set) loop with memcpy (memset)
formatbits.c: optimize WriteMainDataBits
l3bitstream: optimize tableindex calculation
l3loop.c: optimize bin_search_StepSize
add mult_mips_gcc.h
optimize series multiplications for MIPS
move 'polyphase filtering' to mdct.c, and optimize mdct calculation
add interlaced input data support
fix some array for mdct's
export some functions (shine_find_bitrate_index etc.)
remove some unused variables
make some functions inline
optimize series multiplications for ARM, and add missing 'cc' in some inline asm functions
change HUFFBITS to uint16_t